{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "TRPA1 activation was assessed using calcium imaging assays in TRPA1 - overexpressing HEK - 293 cells , mouse primary trigeminal neurons , and human adenocarcinoma ( A549 ) lung cells ."}
{"Chemical": ["calcium"]}